[X86TargetTransformInfo] Fixed warning: Expression 'ISD == ISD::UREM' is always true. NFCI.

Author: davidbolvansky

llvm/lib/Target/X86/X86TargetTransformInfo.cpp

@@ -280,7 +280,7 @@ int X86TTIImpl::getArithmeticInstrCost(
                                     TargetTransformInfo::OP_None,
                                     TargetTransformInfo::OP_None);
 
-    if (ISD == ISD::UREM)
+    else // UREM
       return getArithmeticInstrCost(Instruction::And, Ty, Op1Info, Op2Info,
                                     TargetTransformInfo::OP_None,
                                     TargetTransformInfo::OP_None);